Math CentralQuandaries & Queries


Question from Sue:

If it costs $13.50 a ton of 3/4" stone, how much would 3 yards of stone cost?

Hi Sue.

Your stone supplier will have to tell you the density of the stone. It is probably between 1.5 and 2 tons per cubic yard. You just multiply the cost per ton by the density in tons per cubic yard by the number of yards.

$13.50 / 2000 lbs is the same as $20 to $27 per cubic yard, based on this estimate.

Stephen La Rocque

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